/* Viswa · IITK Learning — shared design for innovation / finops / cloudnexa
   Layout: crisp top bar, confident hero, wide content grid, quiet footer with learning disclaimer.
   Each site sets only --accent / --accent-2 (and their soft tints) below. */
:root{
  --bg:#f6f7f9; --surface:#ffffff; --surface-2:#eef1f5;
  --ink:#121829; --ink-2:#3d465c; --muted:#6b7488; --line:#dde2ea;
  --accent:#0b6bcb; --accent-strong:color-mix(in srgb,#0b6bcb 80%,#000); --accent-soft:color-mix(in srgb,#0b6bcb 11%,#fff);
  --accent-2:#ee6a1f; --accent-2-soft:color-mix(in srgb,#ee6a1f 14%,#fff); --accent-2-ink:#8a5000;
  --hero-1:#0a1628; --hero-2:#0f2c4d; --on-hero:#f3f6fa; --on-hero-2:#b9c6d6;
  --good:#1f8a4c; --warn:#b7791f; --bad:#c2410c;
  --code-bg:#151b2c; --code-fg:#e6ebf5;
  --shadow:0 1px 2px rgba(18,24,41,.05),0 10px 30px rgba(18,24,41,.06);
  --f-display:"Bricolage Grotesque","Mukta",system-ui,sans-serif;
  --f-body:"Mukta",system-ui,-apple-system,"Segoe UI",sans-serif;
  --f-mono:"JetBrains Mono",ui-monospace,Menlo,Consolas,monospace;
  --r:16px; --wide:76rem; --read:48rem;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#0e1320;--surface:#151c2c;--surface-2:#1b2436;--ink:#eef2f8;--ink-2:#c2cada;--muted:#94a0b6;--line:#283246;
  --accent-soft:color-mix(in srgb,var(--accent) 22%,#0e1320);--accent-2-soft:color-mix(in srgb,var(--accent-2) 20%,#0e1320);--accent-2-ink:#f3c47a;
  --accent-strong:color-mix(in srgb,var(--accent) 55%,#ffffff);
  --code-bg:#0a0e18;--shadow:0 1px 2px rgba(0,0,0,.35),0 10px 30px rgba(0,0,0,.3);color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#0e1320;--surface:#151c2c;--surface-2:#1b2436;--ink:#eef2f8;--ink-2:#c2cada;--muted:#94a0b6;--line:#283246;
  --accent-soft:color-mix(in srgb,var(--accent) 22%,#0e1320);--accent-2-soft:color-mix(in srgb,var(--accent-2) 20%,#0e1320);--accent-2-ink:#f3c47a;
  --accent-strong:color-mix(in srgb,var(--accent) 55%,#ffffff);
  --code-bg:#0a0e18;--shadow:0 1px 2px rgba(0,0,0,.35),0 10px 30px rgba(0,0,0,.3);color-scheme:dark}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--f-body);font-size:1.0625rem;line-height:1.65;overflow-x:hidden}
img,svg{max-width:100%}
a{color:var(--accent-strong);text-underline-offset:3px}
:focus-visible{outline:3px solid var(--accent-2);outline-offset:2px;border-radius:6px}
h1,h2,h3,h4{font-family:var(--f-display);color:var(--ink);line-height:1.15;text-wrap:balance;margin:0;letter-spacing:-.01em}
[hidden]{display:none!important}
.wrap{max-width:var(--wide);margin-inline:auto;padding-left:max(18px,env(safe-area-inset-left,0px));padding-right:max(18px,env(safe-area-inset-right,0px))}
.eyebrow{font-size:.78rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--accent-strong)}
.skip{position:absolute;left:-999px}.skip:focus{left:16px;top:8px;z-index:999;background:var(--surface);padding:8px 12px}

/* top bar */
.topbar{position:sticky;top:env(safe-area-inset-top,0px);z-index:60;background:color-mix(in srgb,var(--bg) 86%,transparent);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.topbar .wrap{display:flex;align-items:center;gap:16px;min-height:62px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;flex:none}
.brand .mark{width:32px;height:32px;border-radius:9px;background:var(--ink);color:var(--bg);display:grid;place-items:center;font-family:var(--f-display);font-weight:800;font-size:1rem;position:relative}
.brand .mark::after{content:"";position:absolute;right:-3px;bottom:-3px;width:11px;height:11px;border-radius:50%;background:var(--accent-2);border:2px solid var(--bg)}
.brand b{font-family:var(--f-display);font-size:1.12rem;font-weight:700;line-height:1;display:block}
.brand small{font-size:.72rem;color:var(--muted);font-weight:600;letter-spacing:.02em}
.mainnav{display:flex;gap:2px;overflow-x:auto;scrollbar-width:none;margin-left:auto;min-width:0}
.mainnav::-webkit-scrollbar{display:none}
.mainnav a{white-space:nowrap;text-decoration:none;color:var(--ink-2);font-weight:600;font-size:.93rem;padding:6px 12px;border-radius:999px}
.mainnav a:hover{background:var(--surface-2);color:var(--ink)}
.mainnav a[aria-current]{background:var(--ink);color:var(--bg)}
@media (max-width:820px){.topbar .wrap{flex-wrap:wrap;padding-block:8px;gap:6px}.mainnav{margin-left:0;width:100%;padding-bottom:2px}.brand small{display:none}}

/* hero */
.hero{background:radial-gradient(900px 380px at 85% -10%,color-mix(in srgb,var(--accent) 45%,transparent),transparent 65%),linear-gradient(160deg,var(--hero-1),var(--hero-2));color:var(--on-hero)}
.hero .wrap{padding-block:64px 56px;display:grid;gap:14px}
.hero .eyebrow{color:var(--accent-2)}
.hero h1{color:var(--on-hero);font-size:clamp(2.1rem,5.2vw,3.6rem);font-weight:800;max-width:22ch}
.hero .lead{color:var(--on-hero-2);font-size:1.18rem;max-width:44rem;margin:0}
.hero .actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:10px}
.hero.compact .wrap{padding-block:44px 38px}
.hero.compact h1{font-size:clamp(1.9rem,4.4vw,2.9rem);max-width:28ch}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px}
.chips a,.chips span{font-size:.85rem;font-weight:600;color:var(--on-hero);background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);padding:4px 12px;border-radius:999px;text-decoration:none}
.chips a:hover{background:rgba(255,255,255,.16)}

.btn,.content .btn-gold,.content .btn-back{display:inline-flex;align-items:center;gap:8px;font:inherit;font-weight:700;text-decoration:none;border-radius:999px;padding:10px 22px;border:0;cursor:pointer;background:var(--accent-2);color:#1b1205}
.btn:hover,.content .btn-gold:hover{filter:brightness(1.06)}
.btn.ghost{background:transparent;color:var(--on-hero);border:1.5px solid rgba(255,255,255,.35)}
.btn.ghost:hover{background:rgba(255,255,255,.08)}

/* content */
.content{padding-block:44px 10px}
.content>.wrap{display:grid;gap:34px}
.content section,.content .container,.content main{display:grid;gap:18px;min-width:0}
.content .container{max-width:none;margin:0;padding:0}
.content h2{font-size:clamp(1.55rem,3vw,2.05rem);font-weight:700}
.content h3{font-size:1.22rem;font-weight:700}
.content p{margin:0;max-width:var(--read)}
.content ul,.content ol{margin:0;padding-left:1.25rem;display:grid;gap:6px}
.content li::marker{color:var(--accent)}
.content strong{color:var(--ink)}
.section-title,.intro,.vision-intro{display:grid;gap:10px}
.section-title p,.intro p,.vision-intro p{color:var(--ink-2);font-size:1.08rem}

/* cards & grids */
.grid,.arch-grid,.detail-grid,.ops-grid,.evolution-grid,.grid-layout,.metric-grid,.sub-grid,.gov-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,260px),1fr));gap:16px}
.card,.detail-box,.ops-card,.innovation-card,.build-card,.section-card,.insight,.gov-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:22px;display:flex;flex-direction:column;gap:10px;min-width:0;color:var(--ink);text-decoration:none}
a.card{transition:border-color .15s,transform .15s}
a.card:hover{border-color:var(--accent);transform:translateY(-2px)}
.card p,.detail-box p,.ops-card p,.innovation-card p,.build-card p{color:var(--ink-2)}
.card>a{margin-top:auto;align-self:flex-start;font-weight:700;text-decoration:none;color:var(--accent-strong);background:none!important;padding:0}
.card>a::after,.btn-link::after{content:" →"}
.btn-link{margin-top:auto;font-weight:700;color:var(--accent-strong)}
.gcc-card{border-top:3px solid var(--accent)}
.detail-box[style*="span 2"]{grid-column:1/-1!important}
@media (max-width:640px){[style*="grid-column: span"]{grid-column:auto!important}}

.quote{font-family:var(--f-display);font-size:clamp(1.2rem,2.4vw,1.5rem);line-height:1.35;color:var(--ink);border-left:4px solid var(--accent-2);padding:4px 0 4px 20px;max-width:52rem;font-weight:500}
.quote strong{display:block;font-family:var(--f-body);font-size:.9rem;color:var(--accent-2-ink);margin-top:8px}
.highlight,.finops-banner,.transfer-section,.exec-cta{background:linear-gradient(150deg,var(--hero-1),var(--hero-2));color:var(--on-hero);border-radius:22px;padding:36px clamp(20px,4vw,44px);display:grid;gap:14px}
.highlight h2,.finops-banner h2,.transfer-section h2,.exec-cta h2,.highlight h3{color:var(--on-hero)!important}
.highlight p,.finops-banner p,.transfer-section p,.exec-cta p{color:var(--on-hero-2);max-width:52rem}
.highlight strong,.finops-banner strong,.transfer-section strong,.exec-cta strong{color:var(--on-hero)}
.exec-cta{grid-template-columns:1fr auto;align-items:center}
@media (max-width:640px){.exec-cta{grid-template-columns:1fr}}

.workflow-visual{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,170px),1fr));gap:12px}
.workflow-step{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:16px 18px;display:grid;gap:2px}
.step-num{font-family:var(--f-display);font-size:1.8rem;font-weight:800;color:var(--accent);line-height:1}
.metric-pill,.tag,.coe-tag,.phase-tag{display:inline-block;align-self:flex-start;font-size:.75rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;background:var(--accent-soft);color:var(--accent-strong);padding:4px 10px;border-radius:999px}
.coe-tag{text-transform:none;letter-spacing:0;font-size:.95rem;font-weight:500;border-radius:12px;padding:10px 12px;background:var(--surface-2);color:var(--ink-2)}
.p2{background:var(--accent-2-soft);color:var(--accent-2-ink)}.p3{background:var(--surface-2);color:var(--ink)}.p4{background:var(--ink);color:var(--bg)}
.kpi-box{background:var(--accent-soft);border-radius:var(--r);padding:22px;display:grid;gap:4px}
.kpi-value,.metric-value{font-family:var(--f-display);font-size:2.4rem;font-weight:800;color:var(--accent-strong);line-height:1;font-variant-numeric:tabular-nums}
.metric-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:20px;display:grid;gap:6px}
.metric-label{color:var(--muted);font-weight:600;font-size:.9rem}
.gate-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,140px),1fr));gap:10px}
.gate-box{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.15);border-radius:12px;padding:14px;color:var(--on-hero)}
.gate-box small{color:var(--on-hero-2)}
.checklist{list-style:none;padding:0!important}
.checklist li::before{content:"✓  ";color:var(--good);font-weight:800}
.it-shield{background:var(--accent-2-soft);border-radius:var(--r);padding:22px;display:grid;gap:8px}
.section-card{display:grid;grid-template-columns:1fr 1.2fr;gap:24px;padding:28px}
.content-left,.content-right{display:grid;gap:10px;align-content:start;min-width:0}
.feature-list{list-style:none;padding:0!important;gap:10px!important}
.feature-list li{padding-left:16px;border-left:2px solid var(--accent-soft)}
@media (max-width:760px){.section-card{grid-template-columns:1fr}}

/* page-level in-page chips */
.onpage{display:flex;flex-wrap:wrap;gap:8px}
.onpage a{font-size:.88rem;font-weight:600;text-decoration:none;color:var(--ink-2);background:var(--surface);border:1px solid var(--line);padding:5px 12px;border-radius:999px}
.onpage a:hover{border-color:var(--accent);color:var(--ink)}

/* tables, code */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:14px;background:var(--surface)}
table{border-collapse:collapse;width:100%;font-size:.96rem}
th,td{text-align:left;padding:11px 14px;border-bottom:1px solid var(--line);vertical-align:top}
th{font-family:var(--f-display);font-size:.9rem;background:var(--surface-2);color:var(--ink)}
tr:last-child td{border-bottom:0}
pre{background:var(--code-bg);color:var(--code-fg);border-radius:12px;padding:14px 16px;overflow-x:auto;font-size:.86rem;max-width:100%;margin:0}
code{font-family:var(--f-mono);font-size:.88em;background:var(--surface-2);padding:1px 6px;border-radius:6px}
pre code{background:none;padding:0;color:inherit}

/* pager */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:28px}
.pager a{display:grid;gap:2px;padding:14px 18px;border:1px solid var(--line);border-radius:14px;background:var(--surface);text-decoration:none;color:var(--ink);min-width:0}
.pager a:hover{border-color:var(--accent)}
.pager small{color:var(--muted);font-weight:600;font-size:.8rem}
.pager b{font-family:var(--f-display);font-weight:700}
.pager .next{text-align:right;grid-column:2}
@media (max-width:560px){.pager{grid-template-columns:1fr}.pager .next{grid-column:1}}

/* footer */
.site-foot{margin-top:64px;background:var(--surface);border-top:1px solid var(--line)}
.site-foot .wrap{padding-block:40px;display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:28px}
.site-foot h4{font-size:1rem;margin-bottom:8px}
.site-foot p{margin:0 0 8px;color:var(--ink-2);font-size:.95rem}
.site-foot ul{list-style:none;margin:0;padding:0;display:grid;gap:4px}
.site-foot a{color:var(--ink-2);text-decoration:none;font-size:.95rem}
.site-foot a:hover{color:var(--accent-strong)}
.site-foot .fine{font-size:.84rem;color:var(--muted)}
.site-foot .fq{font-family:var(--f-display);font-size:1.1rem;color:var(--ink);margin-bottom:10px}
@media (max-width:820px){.site-foot .wrap{grid-template-columns:1fr}}